Bottom-dumping hoisting-bucket.



A. N. DOUD. BOTTOM DUMPING HOISTING BUCKET. APPLICATION FILED00T.11.1910.

Patented Oct. 10, 1911.

2 SHBBT8-SHEET 1.

t 5) Q {m m @Zf Armflaw A. N. DOUD.

BOTTOM DUMPING HOISTING BUCKET.

APPLICATION FILED-00111. 1910. 1,005, 1 Patented 001;. 10, 1911.

2 SHEETSSHBET 2.

COLUMBIA. PLANDGRAPH c0. WASHINGTON. D. c.

UNITED STATES PATENT ()FFTCE.

ARTHUR N. DOUD, OF NORTH STOCKHOLM, NEW YORK, ASSIGNOR T0 S. S. SAFFOLD,OF CLEVELAND, OHIO.

BOTTOM-DUMPING HOISTING-BUCKET.

Specification of Letters Patent.

Application filed October 11, 1910.

Patented Oct. 10, 1911.

Serial No. 586,568.

To all whom it may concern.

Be it known that I, ARTHUR N. DoUD, a citizen of the United States,residing at North Stockholm, in the county of St. Lawrence and State ofNew York, have invented a new and useful Bottom-Dumping Hoisting-Bucket,of which the following is a specification.

The invention relates to a double door bottom dumping hoisting bucket.

The object of the present invention is to improve the construction ofbottom dumping hoisting buckets, and to provide a double door bottomdumping hoisting bucket, designed especially for transporting anddepositing concrete in forms where the work is such that the materialmust be under constant and perfect control, and equipped with bottomdoors or gates, adapted to be opened or closed any width within thelimit of their movement, so as to hold the material under perfectcontrol.

Another object of the invention is to provide a discharge bucket of thischaracter, so constructed and having its operating mechanism so arrangedthat it will be adapted to be lowered well down into the form before thegates or doors are opened and the material discharged, whereby thebucket in handling sloppy concrete is adapted to prevent absolutely sidesplash and the consequent waste of material.

A further object of the invention is to provide a self supportingbucket, requiring no braces or platforms to support it, and adapted tobe used in transporting concrete 011 fiat cars to enable a plurality ofbuckets to be placed on the car and run under a mixer and filler with aslittle trouble as would be required to fill ordinary flat bottom bucketsor receptacles.

The invention also has for its object to provide a bottom dumpinghoisting bucket, capable of dumping cleanly and rapidly andcharacterized by a great simplicity of the working parts, and equippedwith operating mechanism, arranged to permit one hand to hold the bucketunder absolute control.

lVith these and other objects in View, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings :Figure 1 is a side elevation of a dumping bottomhoisting bucket, constructed in accordance with this invention, theswinging door sections being closed. Fig. 2 is a similar view, theswinging door sections being open. Fig. 3 is a central verticallongitudinal sectional View, the parts being arranged as shown inFig. 1. Fig. 4 is an end elevation, partly in section. Figs. 5 and 6 aredetail views of one of the side plates of the swinging door sections.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

In the embodiment of the invention illustrated in the accompanyingdrawings, 1 designates the body of the bucket, designed to beconstructed of any suitable material, preferably stout sheet metal, andcomposed of two parallel side plates 2 and oppositely sloping end plates3, connected together at their contiguous edges by metallic angle strips4, arranged within the body of the bucket in the angles formed by theside and end plates and secured to the latter by rivets. The top of thebucket is encircled by a band 5, which like the angle strips 4, isriveted to the side and end plates of the body. The end plates 3 areangularly bent near the bottom of the bucket to provide lower verticalportions 6, and the side plates are provided at the bottom of the bucketwith extensions or narrow portions 7 having straight vertical sideedges, secured to the vertical portions 6 by lower terminal verticalportions 8 of the angle strips 4. This construction forms a rectangularneck at the bottom of the bucket, which is reinforced at the verticalportions 6 of the end plates by horizontal angle strips or bars 9,having one of their flanges or wings fitted against and riveted to theend plates 3, as clearly illustrated in Figs. 3 and 4 of the drawings.The side and end plates may,

however, be secured together and reinforced in any other preferredmanner.

The lower edges of the side plates of the body of the bucket are curvedand consist of opposite arcuate portions 10, meeting at their terminalsin the plane of the center of the side plates. The bottom of the bucketis adapted to be closed by swinging door sections 11, composed ofopposite vertical end plates 12 and curved bottom plates 13, conformingto the curvature of the arouate edges 10 and meeting at the innerterminals thereof when the door sections are closed. The bottom platesare riveted or otherwise secured to inwardly extending curved flanges14, preferably cast integral with the vertical end plates 12 andarranged at the inner faces thereof above the lower edges of the same.Instead, however, of forming the sides and bottoms of the door sectionsseparate, they may consist of a sin gle piece of metal, cast orotherwise constructed. The end plates 12, which are located at oppositesides of the bucket eX- teriorly of the side plates, are approximatelyrectangular and are provided at their tops with inner and outer bearingopenings 15 and 16, preferably in the form of integral horizontaltubular portions. The inner bearing openings 15 receive fixed studs 17,projecting horizontally from the side plates of the bucket at oppositesides of the median line thereof, and formed rigid with verticalattaching plates 18, which are riveted or otherwise secured to the sideplates of the bucket. The rivets, which fasten the attaching plates 18of the studs of the bucket, also secure bracing plates 19 to the same.The bracing plates 19 are angularly bent to form upper and lowervertical portions and a horizontal connecting portion, the uppervertical portion being fitted against the plate 18 and the lowervertical portion being provided with openings for the reception of theouter portions of the pivots or studs 17. The outer portions of thestuds or pivots 17 are provided with perforations for the reception ofcotter pins 20, which are arranged at the outer faces of the bracingplates 19. The bracing plates 19 also cover and protect the pivotalpoint-s of the side plates of the door sections, and prevent concrete orother plastic material from falling between the inner edges of theplates 12 and interfering with the closing of the door sections. Thepivots 17 are arranged centrally with relation to the arcuate edges atthe bottom of the bucket and the curved bottom plates, which areconcentric with each other and with the pivots. The side plates of thedoor sections have horizontal lower edges and are provided with lateraloutwardly extending horizontal supporting flanges or feet 21, which restupon the supporting surface and support the bucket in an uprightposition. This will enable the bucket to be placed upon a fiat car andrun under a mixer and filler with the same facility as an ordinary flatbottom bucket, and it obviates the necessity of providing a special carand a special support for the bucket. The side plates of the doorsections are also preferably reinforced by integral marginal flanges 22,arranged at the outer upright edges of the side plates and extendinglaterally therefrom. The inner edges of the curved bottom plates meet atthe center of the bucket, and the inner edges of the vertical sideplates are oppositely beveled, as shown, to permit the bottom plates tocome squarely together when the door sections are closed.

The means for operating the door sections comprise a swinging elementcomposed of a lever or a pair of levers 2 f, fulcrumed at op positesides of the bucket eXteriorly of the outer side plates on pivots orstuds 25, each having an attaching plate or head 26 at its inner end,which is riveted to the adjacent side plate of the bucket. The levers 21 are provided with apertures through which the horizontal studs 25pass, and they are secured on outer reduced portions of the studs bymeans of a washer 27 and a screw 28, but any other suitable fasteningmeans may be employed. The pivots or studs are both located to one sideof the median plane of a centrally arranged bail 29, and each lever iscomposed of a long outwardly extending arm and a pair of short arms 30and 31, connected by links 32 and 33 with the side plates of the doorsections, each lever and its respective pair of links forming togglejoints or connections. The long arms of the levers are preferably curvedat their outer portions and are connected by a transverse handle bar34-, which is located at the top of the bucket when the door sectionsare closed. The short inner arms 30 and 31 are arranged at an acuteangle to each other and at an obtuse angle to the long arm. The links 32and 33 are inclined and diverge downwardly, their upper ends being connected directly to the arms 30 and 31 by suitable pivots 35, locatedequal distances from the fulcrum of the lever. The lower ends of thelinks are secured to the end plates by pivots 36, which are arranged inthe bearing openings 16. Then the door sections are closed, the longarms of the levers are arranged at an inclination and extend upwardlyand downwardly to the top of the bucket at one end thereof. hen theswinging element is moved downwardly from such position, it acts throughthe links to pull the door sections open simultaneously and at the samerate, and when the swinging element is raised or moved upwardly, itoperates through the links to push the door sections closed. Thearrangement of the operating mechanism in this position enables thebucket to be introduced well into a form before the door sections areopened, which is a great advantage in handling sloppy material, as sidesplash and waste of the same are effectually prevented. \Vhile in thepres ent instance a swinging element is shown composed of two connectedlevers, it will be understood, however, that in some buckets of smallcapacity where the door sections are comparatively light and the load tobe carried is relatively small, a single lever will be sufficient.

In order to lock the door sections in their closed position, the bucketis equipped with a pivoted latch 37, consisting of a shank provided atthe outer end thereof with an engaging portion or head 38 and mounted atthe inner end of the same between vertical ears or flanges 39, formedintegral with attaching plates or portions 40, which are fitted againstthe band 5 and riveted or otherwise secured to the bucket. The pivotallatch preferably consists of a bolt tl, piercing the ears or flanges andthe inner end of the shank, which is also provided with a depending lug42, arranged to engage the band 5 of the bucket for limiting thedownward swing of the latch to prevent the latch from dropping too low.The connecting handle bar of the swinging element is adapted to lift thelatch and automatically engage with the same in the closing movement ofthe door sections, and the latch is arranged in a position to enable itto be conveniently operated by the same hand, which controls theswinging element. The latch is adapted to be swung inwardly andbackwardly over the bucket to free the swinging element, and it will besupported in such posit-ion by the end wall of the bucket, asillustrated in full lines in Fig. 2 of the drawings. The handle portionof the swinging element is also in convenient position for controllingthe opening and closing movements of the door sections, in order thatthe desired quantity of the contents of the bucket may be discharged asrapidly or slowly as desired, so that the operator has absolute controlof such contents. The curvature of the bottom plates of the doorsections and their arcuate movement facilitate an easy opening andclosing of the door sec tions.

The suspension bail 29 extends across the top of the bucket and isrigidly secured to the inner faces of the side plates of the bucket byangle connecting pieces 48, riveted to the bucket and to the dependingextremities of the bail.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. A bucket open at its top and bottom, door sections for the openbottom separately pivoted on the bucket to swing inwardly and outwardlyto closed and open positions, a swinging lever element fulcrumed on thebucket, links pivotally connected directly with the lever element andthe door sections at such points to cause both sections to opensimultaneously and at the same rate, the

lever element being arranged to act through the links to pull the doorsections open as the lever element moves downward and to push thesections closed as the lever element moves upward, and an automaticlatch for locking the door sections in their closed position.

2. A bucket open at its top and bottom, door sections for the openbottom separately pivoted to the bucket to swing inwardly and outwardlyto closed and open positions, a swinging lever element fulcrumed on thebucket and having a handle portion arranged at the top of the bucketwhen the door sections are closed, links pivotally connected directlywith the lever element and door sections at such points to cause thedoor sections to open when the handle portion of the lever element movesdownward and to close when the handle portion of the lever element israised, and an automatic latch located at the top of the bucket andengaging the handle portion of the lever element for locking the doorsections in their closed position.

3. A bucket open at its top and bottom, door sections for the openbottom pivoted to the bucket to swing inwardly and outwardly to closedand open positions, a swinging lever element fulcrumed on the bucket andhaving a handle portion arranged at the top of the bucket when the doorsections are closed, links pivotally connected directly with the leverelement and door sections at such points to cause both door sections toopen when the lever element is moved downward and to close when thelever element is moved upward, and a latch mounted on the bucket at thetop thereof and engaging the lever element for locking the door sectionsin their closed position.

4. A bucket open at its top and bottom, door sections for the openbottom pivoted to the bucket to swing inwardly and outwardly to closedand open positions, a swinging lever element fulcrumed on the bucket andhaving a handle portion arranged at the top of the bucket when the doorsections are closed, links pivotally con nected directly with the leverelement and door sections at such points to cause both door sections toopen when the lever element is moved downward and to close when thelever element is moved upward, and an automatic latch mounted on thebucket at the top thereof and arranged in the path of the handle portionof the lever element and engaging the same to hold the door sectionsclosed. I

5. A bucket open at its top and bottom, door sections for the openbottom pivoted to the bucket to swing inwardly and outwardly to closedand open positions, a swinging lever element fulcrumed on the bucket andhaving a handle portion arranged at the top of the bucket when the doorsections are closed, links pivotally connected directly with the leverelement and door sections at such points to cause both door sections toopen when the lever element is moved downward and to close when thelever element is moved upward, and a latch pivotally mounted on thebucket at the top thereof and arranged in the path of and adapted to beantomatically engaged by the handle portion of the lever element andprovided with a stop for engaging with the bucket to sup port it in suchposition.

6. A bucket open at its top and bottom, door sections for the openbottom pivoted to the bucket to swing inwardly and outwardly to closedand open positions, a swinging lever element fulcrumed on the bucket andhaving a handle portion arranged at the top of the bucket when the doorsections are closed, links pivotally connected directly with the leverelement and door sections at such points to cause both door sections toopen when the lever element is moved downward and to close when thelever element is moved upward, and a latch pivotally mounted on thebucket at the top thereof and arranged in the-path of and adapted to beautomatically engaged by the handle portion of the lever element andprovided with a depending lug for engaging with the bucket to supportthe latch in position for engaging the lever element, said latch beingarranged to swing backwardly against the bucket to an operativeposition.

7 A bucket having door sections, a swinging lever element composed of apair of levers fulcrumed on the bucket at opposite sides thereof andhaving long and short arms, the long arm extending upwardly to the topof the bucket when the door sections are closed, and a transverse handlebar connecting the upper end of the long arms of the levers and spacedfrom the bucket at the top thereof when the door sections are in theirclosed position, links pivotally connected with the short arms of thelevers and with the door sect-ions at such points to cause the doorsections to open simultaneously when the long arms of the levers swingdownward and to close when the long arms are moved upward, and a latchfor locking the door sections in their closed position.

8. A bucket having door sections, a swinging lever element composed of apair of levers fulcrumed on the bucket at opposite sides thereof andhaving long and short arms, the long arm extending upwardly to the topof the bucket when the door sections are closed, and a transverse handlebar connecting the upper end of the long arms of the lovers and spacedfrom the bucket at the top thereof when the door sections are in theirclosed position, links pivotally connected with the short arms of thelevers and with the door sect-ions at such points to cause the doorsections to open simultaneously when the long arms of the levers swingdownward and to close when the long arms are moved upward, and anautomatic latch projecting from the top of the bucket and engaging thehandle bar of the lever element for locking the door sections in theirclosed position.

9. A bucket having door sections for closing the outlet opening thereof,said door sections including vertically-disposed side plates pivoted tothe outside of the bucket at the opposite sides thereof, said plateshaving their bottom edges turned outwardly forming alined horizontalflanges which extend on both sides of the bottom of the bucket, and arecoextensive with the width of the plates.

10. A bucket having door sections composed of side plates pivoted to thebucket and provided at the bottom with horizontal flanges forming feetfor supporting the bucket in an upright position, and bottom platesconnecting the side plates above the feet.

11. A bucket having door sections composed of side plates pivoted to thebucket and having outwardly extending horizontal bottom flanges andprovided with inwardly extending flanges located above the lower edgesof the side plates, and bottom plates connecting the side plates andsecured to the inwardly extending flanges thereof.

12. A bucket having door sections composed of side plates pivoted to thebucket, and curved bottom plates connecting the side plates and arrangedto abut at their inner edges when the door sections are closed, the sideplates being beveled or cut away above and below the connecting bottomplates.

In testimony, that I claim the foregoing as my own, I have heretoaffixed my signature in the presence of two witnesses this fifth day ofOctober, 1910.

ARTHUR N. DOUD.

Witnesses:

A. L. LAWRENCE, N. G. FERRIS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

